Window ventilator



Oct. 18, 1932 s H, s wA 1,883,002

WINDOW VENTILATOB Filed Sept. 8, 1950 Fig-2w Inve nl'or': Sarah H. Seward.

(bier-megs.

Patented Oct. 18, 1932 umreo STATES PATENT erries SARAH H. SEWARILOF MINNEAPOLIS, MINNESOTA WINDOW VENTILATOR Application filed September 8, 1930. 7 Serial No; 480,338.

My invention relates to window ventila-- tors and an object is to provide a device of this character which is adapted to be placed seen a window sill and a partly open winow sash, the device having awall member whose upper portion is deflected inwardly to wart the room, whereby a passage for the entrance of fresh air is provided while at the same time a direct blast into the room is prevented. Another objectisto provide an auxiliary member for use in cold weather by means pun is a perspective view showing the dev ce applied a window. Fig. 2 is a view i-- vertical section. Fig. 3 is a view similar to F g. 2 but showing a slide in place for use in cold weather. Fig. 4 is a view in horizontal section taken on the line 4l l of Fig. 3. Fig. 5 is an elevational view of the slide referred to in connection with Fig. 8.

ai y device is shown in the drawing in conec ion with an ordinary window having a lower sash l0 shdable 1n shdeways 12, a Slll 1% and a ledge 16, the ledge be1ngh1gher than the sill, whereby the usual shoulder 18 is provided. In Fig. 2, the numeral 20 designates the customary window screen. My device is constructed of sheetslilre material, preferably sheet metal, and includes two end members 22 and 24, between which extends a front wall. This all comprises a member 26 secured to the end member 22 and includes a member 28 secured to the end member 24*. The front edges of the end members are shaped in the form of a reverse curve with the narrow portions of these members at the bottom. The wall members 26 and 28 are made of the same shape so that the ends thereof lit respectively upon the reversely curved edges of the end members. The front wall, therefore, is dedicated at 'slideways are provided for the upper and flected inwardly at its upper portion toward the room, the device ordinarily having no rear wall so that'it is open toward the outside of the builcing when in place as'applied to a window. Inorder to adjust the device 55 r for different windows, the two members 26 and 28 aretelescopically engaged with each other for which purpose the upper and lower edges of the member 26 are bent inward as in- 30 and 32,- respectively, whereby 00 lower edges of the member 28. The rear upper corners of the end members 22 and 2e are cut awayso as to form shoulders 34: and 36 respectively, upon which the lower 65 member of'the sash i0 is adapted to rest when this sash is lowered, whereby the device is firmly held in place. It will be understood that when the device is positioned for use, the lower edge thereof is placed in engage- To ment with the shoulder 18 so as to rest upon the sill 14. In this position, the cutaway corners of the end members 22 and 24 clear the slideways 12, but the shoulders 34 and 36 extend part way across these slideways. T5 The Operation of the device thus far described will be understood from Figs. 1 and 2. As indicated by the arrows in Fig. 2, fresh air from the outside passes underneath'the sash 10 and up over the top edges of'the members ,So 28 and 28, the cutaway corners of the end members 22 and 24- providing that the lower edge of the sash 10 shall be lower than the upper edges of the members 26 and 28. Rain is thusprevented from entering the room and .8 dust is, to a considerable extent, trapped and prevented from entering theroom with the fresh air. The device thus far described is intended for use warm weather when an abundance of fresh air is desired. ,9 For use in cold weather, the slide shown in Figs. 8 and 5 is provided. This slide consists of two telescoping members 38 and 40 whose upper edges are beaded together, as in dicated at 42, in order that these two mem-.Q bers may be held together and yet be slidable with relation to each other. For the purpose of holding the slide in place with relation to the main portion of the device, the end member 22 is provided with an inwardly-ex- .1

tending projection 44 such as a punch pro jection. In cold weather, when it is desired to use the slide, the same is slid downwardly between the projection 44 and the sash 10 until the lower edge of the slide engages with the bent-over lower edge 32 of the main portion of the device, as shown in Fig. 3, it being understood that the bent-over edge 32 is spaced sufiiciently from the body portion of the device to permit this engagement. On a account of the telescoping character of the slide, it is apparent that it may lee-adjusted to leave an opening of the desired size at the end of the device which is oppositethe'projection ed. A limited amount of cold air is thus allowed to enter the room through this more or less restricted opening.

, I claim:

1. A window ventilator comprising two end-members, a front wall secured between said end members with the upper portion of said wall deflected inwardly toward the room, means for holding the device fixedly in place to maintain a constant path for the inflow of air underneath a partially open window sash, a telescoping imperforate slide adapted to be inserted between said end members, and

means for holding said slide with its upper edge in engagement with the lower portion of the window sash whereby the inflow of air maybe minutely controlled according to the extent to which said slide is telescoped.

2. A window ventilator comprising two end members, a front wall secured between said end members with the upper portion of said wall deflected inwardly toward the-room,

-means for holding the device fixedly in place to maintain a'constant path for the inflow of air underneath a partially open window sash, a telescoping imperforate slide adaptedto be inserted between said end members, and a projection extending from one of 'said end members toward the other of said end members for holding the said slide with its upper edge in engagement with the lower portion of the window sash whereby the inflow of air may be minutely controlled according to the extent to which said slide is telescoped In testimony whereof I hereunto affix my signature.

SARAH. H. SEWARD. 

